FR577611A - Device applicable to cameras for focusing - Google Patents

Device applicable to cameras for focusing

Info

Publication number
FR577611A
FR577611A FR577611DA FR577611A FR 577611 A FR577611 A FR 577611A FR 577611D A FR577611D A FR 577611DA FR 577611 A FR577611 A FR 577611A
Authority
FR
France
Prior art keywords
cameras
focusing
device applicable
applicable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Eugene-Alfred Faure
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR577611A publication Critical patent/FR577611A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR577611D 1923-04-20 1923-04-20 Device applicable to cameras for focusing Expired FR577611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577611T 1923-04-20

Publications (1)

Publication Number Publication Date
FR577611A true FR577611A (en) 1924-09-08

Family

ID=8954850

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577611D Expired FR577611A (en) 1923-04-20 1923-04-20 Device applicable to cameras for focusing

Country Status (1)

Country Link
FR (1) FR577611A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644383A (en) * 1950-08-19 1953-07-07 Meditz Ludwig Invertoscope for photographic cameras
US2669169A (en) * 1951-02-19 1954-02-16 Meditz Ludwig Invertoscope for photographic cameras

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644383A (en) * 1950-08-19 1953-07-07 Meditz Ludwig Invertoscope for photographic cameras
US2669169A (en) * 1951-02-19 1954-02-16 Meditz Ludwig Invertoscope for photographic cameras

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